Typewriting-machine



A. G. F.-KUROWSKI. TYPEWRITING MACHINE. APPLICATION FILED JAN. 17, 1919.

Patented Aug-31, 1920.

2 SHEETS-SHEET l .IIIIIiI-IB.

A. G. F. KURO WSKI.

TYPEWRITING MACHINE.

APPLICATION FILED JAN. 17, 1919.

1,35 1 ,428 Patented Aug. -31, 1920.

2 SHEETS-SHEET 2.

res area nnrnnne. r. KUROWSKI, or BROOKLYN, new on Assrenon mem weoni rrrnwnrrnn COMPANY, on NEW roan, n. Y., A. CGBPORATIGN ornnn iwnan. V y

' TYPEWRITINGJVI Q INE.

specification of Letters Patent. Aug. 31, 1920; I

Application filed January 17, 1919. Serial No. 271,568.

Tb'allwhom 66m Be it known. thatI, ALFRED G.

tion paper's,residing: in Brooklyn borough, in the county ofv Kings, city and State of New York, have invented'c'ertain new and useful Improvements in Typewriting Mzte chines, of which the 1 following is a specification. 0

This invention relates to rising. scales or line-gages for typewriting machines in which the platen has "a case-shift movement, and also to means for effecting such caseshift movement, and is an improvement on my prior Patent-No. 1,220,647 dated March 27, 1 917. It is to benoted that the rising scale also' serves as a work-sheet holder.

In the above-mentionedpatent, both the rising scale and the shift bar by which the platen frame is supported,are actuated by means of a pivoted'shift frame, and the compensation 'fortheidiflerentialmovement, which would naturally result from the difference in the radial distances of the rising scale and shift. bar from the pivot of the shift. frame, isobtained by means whereby motion is lost betweenthe rising scale and the shift frame. also,'the rising scale is guided for sliding vertical movement in a fixed part of the frame, and. is supported against movement from the platen by means of-springclips carrying rollers engaging with the .upwardly-extending wings of said scale.-

In the present invention, a similar result is obtained by providing for ,a' decreased movement of the shift frame, so as to remove any necessityffor loss of motion-be tween the shift frame and'the rising scale, and, at-the same time, providing'for an 1ncrease or multiplication of motion between the shift frame and thelifting or-supporting bar or rail for the platen frame.

A feature ofthe' invention resides in the mounting of the rising scale on arms hav- In the patented structure,

' the parts shown in Fig.

. 1n1:uppe'r:-case position.

ingswinging movement, due to being fixed on the shift frame, and the provision where,

by the rising scale is maintained in suitable cooperation with the platen. WVith the rising scale mounted onarms having swinging movement, the tendency would be to move the scale -toward and fromthe platen during the case-shi t movement, and. thus interfere w of so much of the machine as is levers 3 will be depressed, and motion will with the simultaneous operation of the'two. i F. Krmo w- Y sin, a subject of'the Emperor of Germany or a citizen of Germany, but having taken out. preliminary United "States naturalizaplaten. In order to hold the scale inpropei position with reference to the platen, springs arts. To obviate this condition, the rising (321.1618 pivotally connected to its swinging -support, and provision is made of spring means which urge the scale away from the or springfclips mounted on' 'a fixed part of the typewriting machine frame are pro.

vided, and saidspring clipsa're 'sjo positionedthat rollers thereon will engage the wings' of-i the said rising scale andserveto maintain the scale in proper position. I i

=Another feature, resides-in the provision I Other features and advantages will here I inafter; appear;

Inthe accompanying drawings, .F;igure 'l-is a diagrammaticside elevation, partly in section, of an Underwood typewriting machine with the present in-;' vention appliedthereto, the platen and the rising scale being in-normal or lower-case Position.- I Fig. 2 is afragmentary perspectiveview V necessary to show the invention. Y

Fig. 3 is a front elevation of someparts tliejmeansl for giving an. additional movement to the shift rail. l -Fig.' 4c is aside view, partly in section, of

3, showing the. parts Upon depression "of alphabet keys, 1 or numeral keys 2, the corresponding .key

be transmittedthrough bell-cranks to types 7 to strike a work-sheet supported on platen 8.

Said platen 8 is revolubly. supported by .100

means of a shaft 9 in a frame or carriage 10,

ing movement on rods-12 and 13, supported in frame 14 of the machine. 7 11 is normally urged in one direction by the usu'alrsp'ring'drum, not.shown; r y

Upon the approach of a type-bar to the-1 platenS, a heel 15 onsaid type-bar will. en

gage a universal frame 16 and effect actua+ 110 '85", of :theinvention, and shows some details of 3 swing-typebarsfi upwardly and rearwardly, j

to cause upper-case types 6 or lower-case Said carriage I 7 tion offast and loose "dogs 17 and 18, re-

spectively, to' intermittently release escape- "-said' frame 10.

.ibail 48 is pivotalhy connected by pins l The parts thus far described .may be of the usual construction. found in Underwood typewriting machines.

1 "Upon depression of shift key 26, and actuationof the. corresponding lever, an arm 27, extending upwardly from said lever,

will rock a shift frame, designatedin gen eralby 28, to effect case-shift action. Said shift frame 28 coniprlses brackets or bellc-ranks 29'fixed on a shaft 30, and a tie-rod 31 connectingsaid brackets 29 at their lower ends.

By means of shift. frame 28, actuation of. shift rail 32 and rising scale 33 is attained. The clutch frame 10 is'supported, as usual, by a roller Mthereon, resting on shift rail32. The usual guard, shownin dotted lines in Fig. 2, is provided to insure engagement between shift rails 32. and roller 34. 7

Usually the shift rail is fixed to the shift frame, but in the present invention, shift rail 82 is carried on the forward ends of levers 35, pivoted respectively to brackets 29 by means of screws 36, and the forked or-slotted rear ends 37 of said levers engage screws 38 supported in the fixed frame ltof the typewriting machine. To secure said screws in the frame, provision is made of enlarged threaded portions 39 which enepenings i0 in the frame Fig. 3.

In order to support the rising scale 33 on the shift frame, brackets or. extensions 41 are secured to shift -frame brackets 29/ Said brackets 41 are positioned with their forward ends overlying a cross bar 42 of the typew-riting machine frame, A'frame or to ears or lugs 45 supported on brackets 41,

and provision is made of springs e6, which are connected at one end to lugs or ears i5, and, at the other end, to Pl'OJQCtiODS at? on said frame i3, and tend to draw said frame 43 away from'the platen. Said rising scale 33 is provided with wings i8 and a9,respectively, and a connecting portion 56,-the rising scale being secured to frame 4:3 by means of screws 51passing through slots 52 in: said scale.

The tendency of springs 46 is to throw frame 43, and consequently the rising scale sitions, of a shift'key, a shift. frame'actu- 33, away from the position to cooperate with the platen. In order to counteract this effect and properly position saidrisin'g scale with reference to the platen, springs or spring clips 58 are mounted on the type-bar segment 5i by means of fastening devices 55, and said springs 58 are provided with rollers 56, which scale 33; Q

Variations may be resorted to within the scope of the invention, andportions .ofthe mprovements may-be used without others.

Having thus described my; invention, LI

' claim 1 1. In atypewritingmaChine, the combi nation, with a platen. carriage shiftable be-' tween upper and lower-case positions, and a supporting roller on said carriage,of a key-actuated :shift frame, arail on which. said roller rests, rail-ciarrying armsr pivoted on said shift frame and provided with slots, and fixed pins projecting into said slots,

'2. In-acase-shift device, the" combination with a'platen movable for case-shift: action, of a platen-supporting rail, a key-actuated shift frame. extending from end'to end of the rail and supporting it atits ends, and. means whereby movement will be given to] said platen-supporting rail: upon actuation of said shift. frame greater than the, move. ment of the shift frame, V

3. In a typewriting machine, the combination with a platen, a platen carriage: shiftable to upperand-lowercase-positions, f a shift frame on which said carriage is supby said key,'a line- -guide'carried by said frame in position to cooperate with said} platen, and means whereby the motion of the shift rail will'be multiplied with refe erence to that of'the shift frame; 7 r i 4. In a typewriting machine, the combi nation with a platen 'a platen carriage i shiftable'between upper and lower-case po-j ated thereby, a: line-guide pivotally mounted on brackets carried said shift frame, means tending to hold said guide away-from said platen, and a device for engaging said to co fiperate'with said platen. i 5. In a typewriting machine, the combination with a platen and a platen carriage shiftable to upper and lower-case positions,

lineuide and holding the same in position 115 of a shift frame mountedon a'shaft'for 120 I swinging movement, a line-guide carried by said shift frame, a rail" for supporting SFLlCl platencarrlage, said rail being carried by said shift frame and positioned nearer to said shaft than" said line-guide, a shift -i25 key, means actuated by said shift :key for giving said line-guide the proper/amount I of movement for case-shift, and means actuated by said shift frame to givea multiplied movement to said railfto. obtain a .130-

engage the wings'of said i 100, ported, a Slllft; key, a'shift frame operated movement of said platen. equal to that of the line-guide 6. In a typewriting machine, the combination with aplaten carriage shiftable to upper and lower-case positions, of a rail for supporting said carriage, a shift frame, railcarrylng armspivotedon said shift frame, and means for controlhng the movements of 7 said arms during the operation of said shift frame.

7 In a typewriting machine,"the combination with a shiftable platen and controlling means therefor including a shift frame, of

brackets screwed to said shift frame, of a mounted bar on which said guide is mounted, a spring tending to turn said bar to with-- draw said guide from juxtaposition with respect to said platen, a springsecured to a fixed part of the machine, and a roller on said spring for engagement with said guide to support the same in position for cooperation with the platen.

9. in a typewriting machine, the combination with a platen supported for case-shift movement, of shifting means including a case-shift frame comprising two brackets fixed to a shaft on whichthe frame rocks and joined by a tie-rod, a lever pivoted on each of said brackets, a rail, by means of .which the platen is supported, secured to corresponding arms of the levers, forks at the other ends of said levers, and fixed pins embraced by said forks. 1

10. In a typewriting machine, the combinationwith a platen shiftable to upper and lower-case positions, of a rising scale to cooperate with said platen, a shift frame upon which said scale is pivoted, and oppos ing springs holding said scale up on its pivot points to insure cooperation between said platen and said scale.

11. In a typewriting machine, the combination with a platen shiftable to upper and lower-case positions, of a rising scale, a. bar through which said platen-shift is effected, a shift frame mounted for swinging .movement about an axis and carrying said scale and said bar, the former being farther from said axis than the latter, and means to give said bar an increased movement to compensate for the difference in radial distances from said axis.

12. In a typewriting machine, the combination with a-platen and supporting means therefor including a shift rail, of a shift frame mounted for swinging movement about an axis, and means operated by said move with said line-gage.

shiftframeiwhereby an angular movement;

ofsaid frame'about its axis;willcause1 a about said axis.

18. In a typewriting'machine, the: com'bi greater. angular. movement .of. said shift railnation with a traveling carriage and a platen shiftable therein, of a scale shiftable Wli/h': V the platen, a key-operated sh1ft-framehaV-J ing ends and tie-.rodsfsaid scale pivoted in thexen'ds of theframe,- a shift-rail for the; platen, levers supporting ,saidrail: and con-i nected to the frame, so that thejplatenand scale shift identical amounts, and opposing springs for holdingthe scale up on itspivot points against theplaten.

14. In a typewriting'machine, the combination with aplaten and supporting means therefor including a shift rail, of a swinging frame on which said rail issupported, a

scale for the platen carried by the frame, keys forswinging the frame, and means for varying the position of" said shift rail with respect to said frame to cause the scale and platen" to shift together. p

15. In a typewriting machine, the combination with a platen and supporting means therefor including a shift fall, a swinging shift frame on which said rail is supported,

a rising scale, connections whereby actua- I tion of said shift frame will effect the shift ing of said scale, and means forchanging the relation between said shift rail and said. shift frame to maintain a substantially con- 1 stant relation between the rising scale and g 100. '16. In a typewriting machine, the combination with a platen and supporting means the platen during case-shift movement.

therefor including a shift rail, .of a linegage associated with said platen to indicate the writing line thereon, a swinging shift a frame supporting said shift'rail and said line-gage, the former being nearer to .the

pivot of said shift frame than thelatter,

key-actuated, means to. give said shift frame a movement sufficient to bring said'line gage to a position for upper-case printing, and

' means to change the relationbetween said.

rail and shift frame to cause said platen to s 5 said rail connecting corresponding arms of, said levers, means to effect a lifting move ment of said shift frame, and means to prevent upward movement ofthe ends of said levers opposite to those carrying said rail.

18. In a typewriting machine, the combi- I nation with a platen shiftable between upper and lower-case positions, of shifting means for said platen including a key-actuated shift frame, a line-guide pivotally supported I I on said shift frame, means urging said guide away from said platen, and meansacting in opposition to said urging means to maintain said'guide in position to cooperate with said platen.

ing ends and tie rods, said scale pivoted in V the ends of the frame, a supportlng ball for said scale, extending substantlallystraight tothe ends, pivots at the ends fol-the bail, a segment above which lies thefscale,,resili-,. ent supports on the segment, adapted to hold the scale uponthe platen, and a shift-rail fol" '15 the platen connected to the-frame to lift the platen and scale identical distances. f Y

I ALFBEDG. F. KUROWSKL Witnesses: l

CATHERINE A. NEVVELL, 7 'ELLA'Ar JOLIDON. 

